Sewing-machine ruffler.



F. L. HUMESTON. Y

SEWING MACHINE RUFFLER.

APPLICATION FILED MAY 3, 1911.

Patented Dec. 19, 1911.

COLUMBIA PLANOGRAPH co., WASHINGTON, D c.

FREDERI ay concern:

at I, FREDERICK L. HUMES- the United States, residing TON, a citi I atNew H the county of New Haven and State 1 nnecticut, have invented ordiscovere 11 new and useful Improvements in y 'NIachine Rufllers, ofwhich the follo s a specification, reference being ha ein to theaccompanying drawings.

This ini relates to that class of sewing mach ers in which the rufflingted from the needle-bars of uch a manner that the fori I e rufflingblades are effected rd movements of the operatcted with the needle-barsof a ines, and in which the backof the rufiiing blades take downwardmovementsof blades ar 5 g machines as now made the timed as to completetheir 5 movements after the needle- ;1 need their downward moveperationof sewing machine machines it is desirable that ard throws of therufliing our simultaneously with or tch-tightening movements, eedlethread is held someherwise the rufliing operaerformed in the best manhepresent invention comf: mprovements in ruiflers of ich the forwardstrokes of i s are effected at the upward 1 operating levers connectedwith the lo ars of the machines, and the invention proved m hereby,after the main forward mo of a ruifling blade has been effected d i I heupward movement of the operating with a sewing machine slight additionalforward 5 Q be imparted to the ruffling first part of the downward eoperating lever with the e the backward movement lade will be efiectedduring f the downward movement of er with the needle-bar. By

needle-ba l Specification of Letters Patent.

Application filed May 3, 1911.

er the take-ups have comr its object to provide im-' ED STATES PATENTOFFICE.

UM ESTON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE GREIST FACTURINGCOMPANY, A CORPORATION OF CONNECTICUT.

SEWING-MACHINE RUFFLER.

Patented Dec. 19, 1911.

Serial No. 624,802.

thus changing the timing of the rufliing blade the rufHer will be bestadapted for cooperation with a sewing machine in which the take-upcompletes its stitch-tightening movement after the needle has commencedto descend for the next succeeding stitch.

The present improvement comprises an additional lever between theoperating lever and the rufiiing blade carrier and which additionallever so cooperates with a yielding cam projection or tooth carried bythe operating lever that after the forward movement of the rufilingblade has been mainly effected during the upward movement of theoperating lever with the needle-bar of the machine,

the said additional lever will be caused to In the accompanying drawingsFigures 1' and 2 are opposite side views of a sewing machine rutHerembodying the present invention. Fig. 3 is a rear view of the same, andFigs. 4 and 5 are detail views showing the parts to which the presentimprovement more particularly relates, and with said parts in differentpositions.

The present invention is herein shown as being applied to a five-stitchruflier such as that shown and described in the Greist and BeckertPatent No.- 983,048, dated Jan. 31, 1911, but it will be understood thatthis invention may be embodied in other kinds of rufflers than thefive-stitch ruffler referred to.

Referring to the drawings, 12 denotes the body of the frame of therufller, and which frame is preferably provided with an integralattaching portion or shank 13 by which it may be secured to thepresser-bar of a sewing machine in substitution of an ordinarypresser-foot. The forked operating lever 14 is pivotally mounted on astud 15 riveted to an upright portion of the frame 12. Also pivotallymounted on the said stud are an oscillating plate 16, a-

the operating lever 14:, said lever carrying a second pawl 23 which maybe thrown into engagement with the teeth of the ratchet wheel 21 whenfive-stitch ruffling is to be done, and by means of this double pawlconstruction a ruffle may be made at each stitch of the machine, or ateach five stitches, according to the adjustment of said pawls, as fullydescribed in the application of Emanuel J. Boyler, No. 601,905, filedJan. 10, 1911.

In the ruifler of Patent No. 983,048, hereinbefore referred to, theentire forward movement of the rutlling blade is effected during theupward movement of the forked operating lever 14, which is actuated fromthe needle-bar of the sewing machine. In the present improved rufHer themain part of the forward movement of the milling blade is effectedduring the upward move ment of the operating lever 14, but after theupward movement of said lever 1 1 wit-h the needle-bar has beencompleted, and when the said lever commences its downward movement withthe needle-bar, an additional forward movement is imparted to theruflling blade carrier by means of a lever 25 fulcrumed on a pin 26 andforked at its lower end to embrace the pin 27 by which the pendulouslever 18 is jointed to the ruffling blade carrier 19. The said lever 25is provided at its upper end with a tooth or cam projection 29 having anabrupt front face, and the operating lever 1 1 is provided near itsfulcrum or pivot with a yielding tooth or cam projection 30 having anabrupt rear face. The yielding tooth or cam projection 30 is carried bya pawl or small lever 31 mounted in the rear portion of the operatinglever 14 and pressed downward by a coil spring 28. During the upwardmovement of the operating lever 14 the cam projection 30 carried by thesaid operating lever rides over the tooth or cam projection 29 on theupper end of the lever 25, said tooth or cam projection 30 yieldingupward against the stress of the coil spring 28, so as to pass by thesaid tooth or cam projection 29. hen, however, the operating lever 14has nearly reached the limit of its upward movement the cam projection30 thereon passes by the cam projection 29 on the lever 25, so that whenthe said lever 14 commences its downward movement the abrupt faces ofthe cam projections 29 and 30 will be in contact, thus causing theoperating lever to impart,n through the said lever 25, a slightadditional forward movement to the rufiiing blade carrier; but as soonas, in the downward movement of the operating lever 14, the tooth or camprojection 30 on said lever passes by the tooth or cam projection 29 onthe lever 25 the forward move ment of the ruflling blade carrier ceasesand the backward movement thereof is effected from said operating lever14 through the connections such as are described in said Patent No.983,018, hereinbefore referred to.

From the foregoing it will be apparent that the provision of the lever25 and its operating cam projection 29, in cooperation with the yieldingcam projection 30 carried by the operating lever 14 enable the finalforward movements of the ru'lliing blade to be effected during the firstpart of the descent of the operating lever lt with the needle-bar,instead of having said forward movements fully completed at the up wardmovements of the needle-bar, as in similar rufllers heretofore made.From this it results that, in the operation of the improved rul'l'ler,the forward movements of the ruitling blade will be completed at thetime when the needle thread is held taut by the take-up, as hereinbeforestated.

I do not herein claim broadly the combination, in a sewing machinerutller, of an operating lever so connected with the ruffling bladecarrier as to impart a forward movement to said rufliing blade on theupward movement of said operating lever with the needle-bar of themachine, and means for imparting an additional forward movement to saidrufliing blade during the first part of the downward movement of saidoperating lever with the needle-bar; as such combination, broadlyconsidered, is the in vention of Emanuel J. Boyler, and is claimed inhis application Serial No. 602,387, filed January 12, 1911, the presentinvention being an improvement upon the rutHer of the said Boylerapplication.

Having thus described my invention I claim and desire to secure byLetters Patent:

1. In a sewing machine ruffier, the combination with an operating leveradapted to be actuated from the needle-bar of a sewing machine andprovided near its fulcrum with a yielding tooth or cam projection, of aruffling blade, a rufliing blade carrier, means for imparting a forwardmovement to said ruffiing blade and its carrier during the upwardmovement of the said operating lever, and an auxiliary lever actuatedfrom said operating lever and having a tooth or cam projectioncooperating with the yielding tooth or cam projection carried by saidoperating lever, whereby the last part of the forward movement of therufliing blade may be effected durmg the first part of the downwardmovements of said operating lever.

2. In a sewing machine ruffier, the combination with an operating leveradapted to be actuated from the needle-bar of a sewing machine, and ayielding tooth or cam projection carried by said operating lever, of aruftling blade, a ruftling blade carrier, a pendulous lever actuatedfrom said operating lever and connected with said rufiling blade carimpart a forward movement to said a and blade during the upward m j t ofsaid operating lever, and an a lever also connected with said with 3 yde carrier and provided with a tooth o a projection opposing the saidyielding o cam projection carried by said ope lever; whereby, during thefirst part downward movement of said operatin r, an additional forwardmovemen J be imparted to said rufiiing blade an f arrier.

3. In a g machine ruflier, the combination W operating lever adapted tobe actuated the needle-bar of a sewing machine, a I ufliing blade, arufiling blade carrier, ulous lever actuated from said oper ever andconnected with said rufliing a arrier to impart a forward moveme idcarrier and blade during Copies of the npwardmovement of said operatinglever, a spring-pressed pawl or lever carried by said operating leverand having a tooth or cam projection, an auxiliary lever also connectedwith said rufiiing blade carrier and provided with a tooth or camprojection arranged so as to be opposed to and to cooperate with thesaid yielding tooth or cam projection carried by said operating lever;whereby, during the first part of the downward movement of saidoperating lever, an additional forward movement will be imparted to saidruflling blade and its carrier.

In testimony whereof I affix my signature, in presence of two witnesses.

FRED. L. HUMESTON. Witnesses:

HUBERT M. GREIsT,

W. G. GREIST.

ent may be obtained for five cents each, by addressing the Commissionerof Patents Washington, D. G.

